I get super turned on when my gf (who is a personal trainer) is working. She turns into such a "top" when she's bossing people around in a gym. And then I just want to jump her, but I can't be at all affectionate b/c she's at work and there are like 300 people watching. *sigh*
Intelligence also really turns me on. The longer I sit and listen to someone discuss something complicated the more I'm attracted to them.
Ohhh, and that muscle just above your hipbone that is almost never visible on women (including none I've actually dated, sadly). And also strong shoulders.
I guess none of these are really "odd" things that turn me on... so here's one... I have a spot on the back of my neck that is like an immediate "on" button if touched gently. In high school a friend of mine (we never dated, but flirted tirelessly

) accidentally found it while sitting behind me in physics class and he would drive me CRAZY. Last time I was growing my hair out there was a couple of weeks when I could put my hair in a ponytail that was the right length to brush back and forth over that spot when I turned my head and I would do it unconciously. I actually had a friend of mine ask my why I was constantly saying "no."

<-- except should be smiling